Oper ation pr inciple -----------------------------------------------------------
The water will drain in the bottom of swimming pool
（
1
），
and the surface
of pool water will through (2)
，
and flow to the relative valve
（
3
）
to
different pipe flow to the water pump
（
4). Water through the pump to flow
to the filter
（
5
），
and then return back to the returned port
（
6
）
back to the
swimming pool. That return port and will be set in the opposite of the
drain port. Filter is filtering the water to make water to recycle used as.
The filter, it is filtering water by the quartz sand inside. When water flow
on the sand. Then the sand will filter it by adsorption and precipitation of
suspended substances.
Once it is started filtration cycle, after a period of operation time. It is
necessary to clean the filter, otherwise it will be dirty and sand material
blockage, thereby preventing water go through.
Filter should be flushing when the it working pressure over 1.3kg/cm
2.
The cleaning process is a reverse operation, reverse operation through the
filter in the water, Drainage the dirty material into the sewer.
-2-
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